Chartered: 2-18-1956
Sponsor: Antioch
Meetings: 1st Thurs. 6:00pm, 3rd Thurs. noon
July-June ( not dark)
Location: 610 St. Francis Way, Veterans Memorial Building
Mailing: P.O. Box 152, Rio Vista, CA 94571
Email: siriovista@soroptimist.net 
Website:  siriovista.org 
Facebook: Soroptimist International of Rio Vista